Memphis guard Geron Johnson (55) goes up to dunk the ball in front of Siena guard Evan Hymes (5) during the first half of an NCAA college basketball game in Kissimmee, Fla., Thursday, Nov. 28, 2013. (AP Photo/Phelan M. Ebenhack)
(The Associated Press)

Memphis guard Joe Jackson goes up for a layup during the first half of an NCAA college basketball game against Siena in Kissimmee, Fla., Thursday, Nov. 28, 2013. (AP Photo/Phelan M. Ebenhack)
(The Associated Press)

Siena guard Marquis Wright, left, and Memphis guard Damien Wilson dive after a loose ball during the first half of an NCAA college basketball game in Kissimmee, Fla., Thursday, Nov. 28, 2013. (AP Photo/Phelan M. Ebenhack)
(The Associated Press)

Joe Jackson scored 18 points, Shaq Goodwin had 17 and the 21st-ranked Tigers advanced to the semifinals of the Old Spice Classic by beating Siena 87-60 on Thursday night.

Michael Dixon Jr. added 16 points for Memphis (3-1).

"Very happy for the win," coach Josh Pastner said. "We don't take wins for granted. I thought we played hard. Thought we did some good things."

The Tigers' lone loss this season came against No. 5 Oklahoma State, a game the Cowboys won handily 101-80 on Nov. 19. Memphis could get a rematch in the championship game of this event Sunday if both teams win Friday.

Siena (2-5) got 11 points from Brett Bisping. Leading scorer Rob Poole (15.5 points per game) was held to six on 3-of-15 shooting.

"I expected us to compete a little harder than that," Siena coach Jimmy Patsos said. "I thought there were spurts we competed. They're a more talented team than us.

"I had some guys wake up and realize you have to play at a high, high level. And you have to execute to win. We're trying to win the MAAC in March, and I saw a lot of bad habits that I'm responsible for as the head coach and I will do my best to break."

After a slow start, Memphis grabbed a 48-31 halftime advantage as Goodwin and Dixon both scored 13 points. Jackson added 12, including a 3-pointer just before the buzzer.

Lavon Long's layup got Siena to 52-41 just 3½ minutes into the second half.

Jackson had a three-point play to give the Tigers a 59-41 lead with 15 minutes to go. Dixon extended the advantage to 71-47 on a 3-pointer.

"My teammates just found me in some spots," Dixon said.

Siena held two-point leads four times early on, including 8-6 when Bisping scored on a layup.

Memphis took its first lead, 10-8, on Goodwin's dunk 5½ minutes into the game.

"The biggest thing is, he's playing above the rim, not at the rim," Pastner said.

Jackson's first points, on a layup midway through the half, made it 18-12.

The Tigers went ahead 32-18 when Dixon connected on his second long-range jumper 6 minutes before the break.

Poole missed his first seven shots before making a layup late in the first half.